Granted Patent
Utility
US 6,690,320 · App. 09/878,895
Time domain reflectometry measurement instrument
Inventors:
John S. Benway, Donald Patterson, James M. Berry
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Jun 11, 2001
Inventors
John S. Benway
Donald Patterson
James M. Berry
Assignee (at issue)
Magnetrol International, Incorporated
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.